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1、BRITISH STANDARD BS 534:1990 Specification for Steel pipes, joints and specials for water and sewage Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 This British Standard, having been prepared under the direction of the Piping Sy
2、stems Components Standards Policy Committee, was published under the authority of the Board of BSI and comes into effect on 31 August 1990 BSI 02-1999 First published 1934 Second edition December 1966 Third edition February 1981 Fourth edition August 1990 The following BSI references relate to the w
3、ork on this standard: Committee reference PSE/8 Draft for comment 88/73158 DC ISBN 0 580 188175 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Piping Systems Components Standards Policy Committee (PSE/-) to Technical Committee PSE/8, up
4、on which the following bodies were represented: Adhesive Tape Manufacturers Association British Compressed Air Society British Gas plc British Malleable Tube Fittings Association British Steel Industry British Valve and Actuator Manufacturers Association British Welded Steel Tube Association Food an
5、d Drink Federation Institution of Civil Engineers Institution of Gas Engineers Institution of Water and Environmental Management Mechanical Handling Engineers Association Stainless Steel Fabricators Association of Great Britain TI (Group Services) Ltd. Water Companies Association Water Research Cent
6、re Water Services Association of England and Wales Wrought Fitting Makers Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 BSI 02-1999i Contents Page Committees
7、responsible Inside front cover Forewordiii Section 1. General 1Scope1 2Information to be supplied by the purchaser1 3Definitions1 4Designation of size2 5Materials2 6Effect of non-metallic products on water quality2 7Marking2 8Manufacturers and test certificates3 Section 2. Pipes 9Sizes, masses per u
8、nit length and test pressures of pipes4 10Length4 Section 3. Joints 11Types of joints5 12Butt-welded joints5 13Sleeve joints for welding5 14Slip-on type couplings6 15Flange joints8 16Threaded and coupled joints8 Section 4. Specials 17Fabrication9 18Testing9 19Tolerances9 20Even curvature manipulated
9、 bends9 21Gusseted bends10 22Tees10 23Welding collars10 Section 5. Protection against corrosion 24Surface preparation13 25Coatings and linings13 26External protection13 27Internal protection14 28Tests on applied external and internal protections14 29Concrete lining and cement mortar lining of pipes1
10、5 30Stop back of protection at ends17 31Completion of protections at joints17 32Protection of coated and lined pipes against damage in storage, transport and handling17 Appendix A Essential information to be supplied by the purchaser in the enquiry and order18 Appendix B Purchaser options18 Appendix
11、 C Electrical test for continuity18 Figure 1 Butt-welded joint preparation5 Figure 2 Sleeve welded joints7 Figure 3 Slip-on type couplings8 Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 ii BSI 02-1999 Page Figure 4 Threaded and
12、 coupled joints recessed for bitumen lining8 Figure 5 Even curvature bend of 909 Figure 6 Even curvature bend less than 909 Figure 7 Gusseted bend type 1, not more than 3010 Figure 8 Gusseted bend type 2, over 30 up to 6010 Figure 9 Gusseted bend type 3, over 60 up to 9010 Figure 10 Plain end tee fo
13、r slip-on type coupling and butt-welded joint11 Figure 11 Sleeve joint tee for welding11 Figure 12 Tee with flanged branch12 Figure 13 Welding collar12 Table 1 Minimum nominal thickness, mass per metre length and hydraulic test pressure for steel pipes4 Table 2 End tolerances5 Table 3 Lengths of sli
14、p-on type coupling sleeves6 Table 4 Tolerances on outside diameter on length L6 Table 5 Coupler recess dimensions: taper threading to BS 218 Table 6 Coupler recess dimensions: taper threading to API standard 5B8 Table 7 Dimensions of even curvature bends: sizes 60.3 mm to 323.9 mm o.d. inclusive10 T
15、able 8 Dimensions of gusseted bends: pipe sizes 114.3 mm to 2235 mm o.d. inclusive11 Table 9 Dimensions of tees: pipe sizes 60.3 mm to 2235 mm o.d. inclusive12 Table 10 Thickness of bitumen sheathing material13 Table 11 Thickness of polyethylene14 Table 12 Thickness of bitumen lining material15 Tabl
16、e 13 Thickness of concrete lining15 Table 14 Thickness of cement mortar lining17 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 BSI 02-1999iii Foreword This British Standard has been pre
17、pared under the direction of the Piping Systems Components Standards Policy Committee and supersedes BS 534:1981 which is withdrawn. Pipe outside diameters have been aligned with ISO 4200 published by the International Organization for Standardization. Requirements for external and internal protecti
18、ons given in section 5 will be replaced in due course by protection requirements given in new British Standards. Reference is made to the need for non-metallic products which will come into contact with potable water to comply with BS 6920-1. A British Standard does not purport to include all the ne
19、cessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, page
20、s 1 to 18, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Unc
21、ontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 BSI 02-19991 Section 1. General 1 Scope This standard specifies requirements for seamless and welded carbon steel pipes and specials and for joints
22、in respect of the pipe end preparation, in sizes 60.3 mm to 2 235 mm outside diameter, for the conveyance of water and sewage. It includes external and internal protection against the corrosive action of the surrounding medium and conveyed fluid. NOTE 1This standard does not apply to those steel tub
23、es and tubulars with screwed and socketed joints, which are covered by the requirements of BS 1387. NOTE 2For recommendations on the basis of design and service limitations, reference should be made to CP 2010-2. NOTE 3The titles of the publications referred to in this standard are listed on the ins
24、ide back cover. 2 Information to be supplied by the purchaser 2.1 The purchaser is to provide to the supplier the information given in Appendix A to enable products to be supplied in accordance with this standard. 2.2 A number of options are permitted by this standard as given in Appendix B. Both th
25、e definitive requirements specified throughout this standard and the options selected by the purchaser shall be satisfied by the manufacturer before a claim of compliance with this standard can be made and verified. In the event that the purchaser does not indicate his requirements at the time of en
26、quiry and order the manufacturer shall select the option where appropriate. 3 Definitions For the purposes of this British Standard, the following definitions apply. 3.1 pipe a straight conduit for fluid, of circular cross section, with plain or prepared ends 3.2 fitting a component fitted to a pipe
27、 for jointing, connecting or changing the direction or bore of a pipe 3.3 special a fitting made from manipulated or fabricated pipe, i.e. bend, gusseted bend, tee, collar 3.4 working pressure the maximum sustained operating pressure at which the pipe, fitting or special is intended to be used 3.5 r
28、andom lengths normal manufacturing lengths falling within a specified range 3.6 cut lengths pipes cut to a specified length on which only a small tolerance is allowed 3.7 effective length the actual length that a pipe contributes when correctly assembled in a run of piping. This dimension excludes t
29、he additional length contributed by a slip-on type coupling when this is used 3.8 glass tissue a uniformly porous mat, of minimum mass 40 g/m2, made of glass monofilaments in random arrangement bonded with a thermosetting resin 3.9 reinforced glass tissue glass tissue with the addition of strands of
30、 glass yarn to give additional longitudinal tensile strength, the whole being bonded with a thermosetting resin 3.10 woven glass cloth a loom-state fabric, of minimum mass 120 g/m2, made of low alkali glass, complying with BS 3396-1 and uniformly woven from continuous filament yarn to form a porous
31、cloth with selvedges well made, substantially straight and even, or a lock woven square mesh lacquer bonded fabric 3.11 composite glass fibre fabric a reinforcement consisting of glass lock welded fabric and glass fibre combined NOTEThis reinforcement may be impregnated uniformly with a suitable bit
32、umen or coal tar derived material. 3.12 lining a durable material applied to the internal surface of steel pipes and fittings to protect the metal from corrosion, erosion or chemical attack 3.13 coating a durable material applied to the external surface of steel pipes and fittings to protect the met
33、al Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 2 BSI 02-1999 3.14 closing length the final length of pipe which effectively completes or closes the system and which is normally cut to length on site 4 Designation of size 4.1
34、Pipes Pipes shall be designated by their outside diameters (in mm). 4.2 Specials 4.2.1 Bends shall be designated by their outside diameter (in mm) and the angle of the bend. 4.2.2 Tees shall be designated as follows. a) A tee with no reductions shall be designated by its common size. b) A tee reduci
35、ng only on the branch shall be designated by two sizes, the size of the main being given first. c) A tee reducing on the branch and the main or only on the main shall be designated by three sizes, the larger size of the main followed by the smaller size of the main followed by the size of the branch
36、. 4.2.3 Collars shall be designated by the outside diameter (in mm) of the pipes for which they are intended. 5 Materials 5.1 Pipes Pipes shall comply with BS 3601. NOTE 1It is essential that the grade and method of manufacture required is stated in the enquiry and order (see item b) of Appendix A).
37、 NOTE 2The purchaser has options permitted under BS 3601. 5.2 Specials The main bodies of specials shall comply with BS 3601. NOTE 1It is essential that the grade and method of manufacture is stated in the enquiry and order (see item b) of Appendix A). NOTE 2Unless otherwise specified by the purchas
38、er branches of tees may be made of other grades of weldable steel, provided the completed fittings are at least as strong as required for the main bodies. The purchaser should state in the enquiry and order if the material for branches of tees should be identical to that used for the main bodies (se
39、e item a) of Appendix B). 6 Effect of non-metallic products on water quality When used under the conditions for which they are designated, non-metallic products in contact with or likely to come into contact with potable water shall comply with BS 6920-1:1988. NOTE 1Non-metallic products for install
40、ation and use in the United Kingdom which are verified and listed under the UK Water Fittings Byelaws Scheme are deemed to satisfy the requirements of this clause. Details of the Scheme are obtainable from the Water Research Centre Byelaws Advisory Service, 660 Ajax Avenue, Slough SL1 4BG. Non-metal
41、lic products approved by the Department of the Environment Committee on Chemicals and Materials of Construction for use in Public Water Supply and Swimming Pools are considered free from adverse health effects for the purposes of compliance with this clause. NOTE 2A list of approved chemicals and ma
42、terials and details of the approvals scheme is available from the Secretary of the Committee at the Department of the Environment, Water Division, Romney House, 43 Marsham Street, London SW1P 3PY. 7 Marking 7.1 Each pipe and special shall be legibly marked by stencilling or other indelible marking i
43、n accordance with 7.2. 7.2 The marking shall consist of the following in the sequence indicated: a) the manufacturers name or identification mark; b) the number and date of this British Standard, i.e. BS 534:19901); c) the designation of size; d) the material designation as given in BS 3601, e.g. ER
44、W 430; e) when a test certificate is supplied, the purchasers order number or other appropriate mark to identify the pipes with the test certificate. Alternatively, for tubes that are bundled, the information given in a), b), c) and e) shall be either stamped on one or more metal or other durable ta
45、gs, or printed on banding clips or straps, which shall be securely attached to each bundle. Not more than one steel grade shall be included in any one bundle. NOTEAdditional markings may be used provided they do not conflict with the requirements of 7.2. 1) Marking BS 534:1990 on or in relation to a
46、 product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that the product meets the requirements of the standard. The accuracy of the claim is therefore solely the responsibility of the person making the claim. Such a declaration is not to be co
47、nfused with third party certification of conformity, which may also be desirable. Licensed Copy: sheffieldun sheffieldun, na, Fri Dec 01 14:35:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 534:1990 BSI 02-19993 7.3 The quality of the paint or ink applied shall be such that it shall have a life of
48、 at least 1 year in unheated storage under cover. The dried film shall not contain more than 0.025 % (m/m) of each of the following metals: lead, tin, copper, zinc. NOTEFor certain applications limits may be required on the levels of sulphur and halogens in the paint. These limits should be subject
49、to agreement between the supplier and the purchaser. 8 Manufacturers and test certificates 8.1 Manufacturers certificate When a manufacturers certificate is supplied it shall state that the pipes, joints and specials, as appropriate, comply in all respects with the requirements of this standard. NOTEIf a manufacturers certificate is required this should be stated by the purchaser in the enquiry and order (see item b) of Appendix B). 8.2 Test certificates When a test certificate is supplied it shall contai